Circuit with overvoltage protection
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 12, 1999
Grant Date -
N/A
app pub date -
Dec 15, 1997
filing date -
Dec 15, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A circuit (100) has a pull-up transistor (110), a pull-down transistor (120), an input driver (200). The pull transistors (110, 120) pull an output line (102) to first or second reference lines (101, 103). The output line (102) can assume a potential higher than the potential at the first reference line (101). The circuit (100) further comprises protection transistors (150, 160, 170, 180). The protection transistors compare the potential at the output line (102) with the potential at the first reference line (101). The protection transistors keep a substrate line (106) of the pull-up transistor (110) at the potential of the output line (102) or at the potential of the first reference line (101), whichever is higher.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully